Illinois state Sen. Napoleon Harris, who is a Thornton Township Democratic committeeman, won the caucus, which led Henyard to object. "You didn't run none of this the right way," she told Harris.

On Thursday, Henyard filed a lawsuit against Democrats of Thornton Township, the political party committee chaired by State Senator Napoleon Harris, who is also named as a defendant.

Illinois State Sen. Napoleon Harris will be the Democratic Party’s nominee in the April 1 election for Thornton Township supervisor, meaning that Henyard will in all likelihood lose both of her ...